Red Devil tetra

Hyphessobrycon notidanos

Blue eyes, reddish colour and an elongated male dorsal fin

The Red Devil trade form has a shoulder mark and narrow dark lateral stripe, with a pointed male dorsal fin.

Adult length: Up to 2.9 cm (standard length, without the tail fin)
Water temperature: 22–27 °C
pH: 6–7.5

Natural habitat: Inhabits slow margins of clear, shallow rivers over sand and scattered small stones, with submerged and bankside vegetation.

Appearance and identification

The Red Devil form has a red body and blue irises; the Yellow Devil form has red irises. These are trade forms, not sexes. H. piranga also uses the Red Devil trade name and is a different species; check the scientific name and the full pattern rather than the label alone.